KORBEL BETR NOVAK MILAN <br/><br/>
THE COMPLETE ENCYCLOPEDIA OF MINARALS 

 - 3rd Ed. 
 -  Rebo Publishers   2005 
<br/><br/><label>ISBN: </label>9036615062 
<br/><br/><label>Dewey Class. No.: </label>553.6  / KOR/T